DOIAbstract
The G0 experiment is dedicated to the determination of the strange quark's contribution to the electric and magnetic nucleon form factors, provided by parity-violating asymmetries of cross-sections measured with longitudinaly polarized electrons in elastic electron-proton scattering and quasi-elastic electron-deuteron scattering. Forward angle measurements, which have been performed in Hall C of Jefferson Laboratory, have provided a linear combination of electric and magnetic vector form factors for momentum transfers in the range 0.1 to 1 (GeV/c)^2. Backward angle measurements, which will be performed starting in 2006, will allow the complete separation of the form factors of Q^2 of 0.23 and 0.63 (GeV/c)^2
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